Antirattler door-lock.



(3.1. HAGSTROIVI.

ANTIRATTLER DOOR LOCK.

APPLICATION FILED IuLY 22, 1915.

pw@ y l memdApr. 10,1917.

as Parana orare.

CML JOHN HGSTROM, 0F GLEN COVE, NEW YORK, ASSIGNOR TO ANNA. E. HAGSTROM,

0F GLEN COVE, NEW YORK. I

ANTIRATTLER DOOR-LOCK.

To all fwhom t mag/concern:

Be it known that 1, CARL JoHN HAG- srRoM, a subject of the King ofSweden, and a resident of Glen Cove, in the county of Nassau and Stateof New York, have invented a new and improved Antirattler Door-Lock, ofwhich the following is a full, clear, and exact description.

This invention relates to builders hard# ware and has particularreference to locks and latches for swinging doors or the like.

One of the principal objects of the invention is to prowde a lock for aswinging door, the catch of which is hidden or retracted within thecasing when the door'is opened and which is automatically thrown intoholding or loclng position when engaging a member on the door frame.Another object of the invention is to provide a means whereby the catchmember is caused automatically to so act upon the striking member orkeeper as to take up any lost motion between the door and the strike andthereby prevent rattling of the door when in closed position.

With the foregoing and other objects in view, the invention consists inthe arrangement and combination of parts hereinafter described andclaimed, and while the invention is not restricted to the exact detailsof construction disclosed herein, still for the purpose of illustratingapractical embodiment thereof reference is had to the accompanyingdrawings, in which like reference characters designate the same parts inthe several views, and in which- Figure 1 is aside elevation of one formof the improvement indicating the door closed;

Fig. 2 is a longitudinal section of the same on the line 2-2 of Fig. 1;

Fi 3 is a view corresponding to Fig. 2 but s owing theparts in adiderent relative position;

Fig. 4 is a view of the same nature as Fig. 3 but showing a modifiedform of the invention' Fig. 5 is a view of the same form of inventionshown in Fig. 4, but showing the parts in locked position; andv Fig. 6is a longitudinal section on the line 6-6 of Fig. 4.

Referring now more particularly to Figs.

Specification of Letters Patent.

Patented Apr. 111, 191'?.

Application led July 22, 1915. Serial No. 41,268.

l, and 3, I show at 10 a fragment of a swlnging door which may beregarded as a refrigerator door and carrying a lock casing 11. At 12 isindicated the door frame or striking member carrying a. keeper 13. r1`hekeeper includes a catch actuator in the form of a ixed lug or pointedprojection 14 having a beveled face 15, the ypoint extend* lng towardthe door and outwardly from the strike 12. Between the actuator 14 and ashoulder 16 is left an opening or space 17.

At 18 is indicated a bell crank catch pivoted on a xed pivot 19 in thecasing 11 and having a point 20 adapted to engage the f actuator andglide along the inclined surface 15 thereof when the door goes shut, andwhereby the catch is swung through approximately 90 degrees around itspivot with the point of the catch lying within the keeper. The door andcasing are notched, as shown at 21, to 'admit the point of the actuator.At the rear end of the casing is arranged a ixed member 22 shown as apin parallel to the pivot 19 against which is seated a block 23 slidablymounted in a tubular bolt 24 having a bifurcated end 25 straddling thepin 22. Within the bolt is a strong spring 26 acting between the block23 and the closed end of the bolt. The force of the spring tends toclose the bolt outwardly or away from the block 23 and pin 22. Saidouter end of the bolt is pivotedv at 27 to the bell crank catch 18, andduring the pivotal movements of the catch 18 the center of the pivot 27is adapted to pass the line joining the centers of the pivot 19 and pin22 whereby the force of the spring tends to hold the catch in eitherextreme position. rFhis type of lock is especially used in connectionwith refrigerator doors for the reason that when the door is closed thepoint 20 of the catch striking against the actuator 14 will throw thecatch around to the left, as shown in Fig. 3, causing the pivot 27 topass the dead center and thereupon the spring 26 willvautomaticallycontinue the movement of the catch in the same direction, causin theouter face of the free arm of the catch Fever to bear against theshoulder 16 irrespective of the amount of lost motion between the doorand the strike, the result being that the catch will edectively hold the.door snugly closed independently of any As an indication of suitablemeans to unlock the door, the tubular bolt 24 is provided with a lug 28adjacent its inner end extending toward the front portion of the casing11 in position to be engaged by a lug 29 of a bell crank finger piecepivoted at 31 in the casing. When the free end of the finger piece isgrasped and drawn outwardly in the direction of the arrow, Fig. 2, thelug 29 engaging the lug 28 throws the bolt 24 inwardly against the forceof the spring and thereby withdraws the catch from the keeper.This-movement of the linger piece sets the parts shown in Fig. 3, wherethey remain until the door is again closed.

In the modied form of the invention there is provided a keeper- 13having a shoulder 16 and an opening 17 of the same nature as alreadydescribed. The casing 11 is arranged in the same manner substantially asabovedescribed, and has within it a slidable tubular bolt 24 movablealong or over a fixed abutment 22 between which and the other end of thebolt is interposed a strong spring 26. The catch 18', while actingagainst the shoulder 16 substantially the` same as in the other form ofthe invention, is not attached to the spring operated bolt, but is actedupon by said bolt by a sliding motion, the point of the bolt bearingagainst the face ofthe catch opposite the face which engages theshoulder. The spring acting upon the bolt, however, and in turn upon thev catch, acts in precisely the same manner to take up such motion andthereby prevent rattlingof the door when closed. The catch is pivoted ona fixed pivot 19 and has an angularly directed lug 27 which is adaptedto be engaged by a hook 32 at the free end of the bolt 24 when the boltis drawn inwardly againsmtthe spring. rlhis action of the bolt iseffected by a finger piece 30 suggested as used in this form of theinvention the same as in the first form, a lug 29 bearing against a lug28 carried by theinner end of the bolt.

The form of the invention shown in Figs. 4, 5 and 6 is designedespecially for automobile doors or the like, where a positive lock isdesired to hold the door closed, the bolt projecting` into'the keeperserving to prevent the opening movement of the catch 18 prior to thepositive withdrawal of`the bolt from locking position by the fingerpiece or its equivalent. ln the other form of the invention it will beobserved that it is possible for the door to be opened bodily withoutfirst releasing the catch, although the force of the spring is ample forholding the door closed under ordinary conditions. This type of lock,therefore, may be used to advantage on cupboards, book cases and otherplaces where a positive lock is not demanded.

When the bolt 24 is retracted and the hook 32 swings the catch 18 withinthe casing 11, the parts are held in such position by means of anactuator 14 includinga hook 33 engaging into a notch 34 near the outerend of the bolt, the actuator being moved around its pivot 35 for. thispurpose by a light spring 36. A finger 37 extends laterally through aslot 38 in a plate 39 and thence outwardly parallel to the main part ofthe actuator in position to strike a lug 15 on or adjacent the keeper13. When the door goes shut, this linger striking the lug 15 withdrawsthe hook 33 from the notch 34 allowing the force of the spring 26 tothrow the bolt outwardly and thereby throw the catch 18 into the keeperas already explained, the extent of movement of the bolt and catch beingdetermined by the amount of looseness in the door.

l claim:

1. In a door lock of the character'set forth, the combination of acasing, a bell crank catch pivoted in one end of the casing, the freeend portion of the catch being adapted to house within the casing or toswing beyond the same, a keeper cooperating with the catch whenprojected, a tubular bolt within the casing cooperating with the catchmeinber to move it around its pivot, a spring acting upon the bolt tomove it in one direction, a finger piece acting against the bolt to moveit in the opposite direction against the force of the spring, and meansassociated with the keeper to cause the catch to be projectedantomatically.

2. In an anti-rattler door lock, the combination of a casing, a bellcrank catch pivoted to one end of the casing, a tubular spring pressedbolt pivoted to one end of the catch tending to hold the same in eitherof its extreme positions with its free end either housed within thecasing or projected outwardly therefrom, a keeper adapted to receivesaid free end of the catch, and a stationary actuator adapted to beengaged by said Jfree end of the catch to cause it to swing outwardlyinto engagement with the keeper.

3. ln a door lock, the combination of a casing, a bell crank catchpivoted in one end of the casing, a fixed abutment adjacent the otherend of the casing, a tubular bolt within the casing, pivoted at one endto one end of the catch, the other end of the bolt being bifurcated andstraddling said abutment, a block fitted slidably within the tubularbolt and bearing at one end against the abutment, a coil spring locatedwithin the bolt abutting at one end against the other end of said blockand tending to cause the bolt to swing the catch around its pivot .toproject the free ond thereof forcibly outward beyond the casing, thebolt, however, being movable when its axes are crossed and beyond theline joinment, whereby the catch may be heid retracted Within thecasing, another bell crank pvoted in the casing and having one endadapted t-o engage the bolt against the force of the spring to throw thecatch in one direction around its pivot, associated with the casing andincluding a projecting actuator serving to engage the free end of thecatch and cause it to swing in the opposite direc CARL JOHN HAGSTBOM.

Witnesses.:

PHILIP D. ROLLHAUS,

A. H. DAVIS.

